Knowledge Base

The Hardware Status tab displays the error: Hardware monitoring service on this host is not responding or not available (1013080)

Symptoms

You are experiencing these issues with the Hardware Status tab in vCenter Server:

An ESX host's System Summary reports the error:

Hardware monitoring service on this host is not responding or not available

Resolution

This issue may occur when the ESX host is located in a DMZ and is being managed by a vCenter Server that is outside the DMZ. It may occur if port 5989 is blocked, even if ESX and vCenter Server are in the same network.

To resolve this issue, ensure that TCP port 5989 (incoming and outgoing) is open to allow CIM transaction traffic to pass between the ESX host and vCenter Server and vice-versa.

For more information about firewall configuration and ports, see:

Firewalls for Configurations with vCenter Server and TCP and UDP Ports for Management Access in the ESX Configuration Guide.